JPS6421779A - Fixing structure for magnetic disk - Google Patents
Fixing structure for magnetic diskInfo
- Publication number
- JPS6421779A JPS6421779A JP17759587A JP17759587A JPS6421779A JP S6421779 A JPS6421779 A JP S6421779A JP 17759587 A JP17759587 A JP 17759587A JP 17759587 A JP17759587 A JP 17759587A JP S6421779 A JPS6421779 A JP S6421779A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- shape
- hub member
- making
- spacer ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
PURPOSE:To easily fix a magnetic disk without using screw fixing and making it eccentric by installing the magnetic disk on the hub-shaped member of shape memory alloy, given a shape memory, through a spacer ring, and making it into a memorized shape by giving the change of temperature. CONSTITUTION:The hub member 21, made of the shape memory alloy, is worked by memory processing previously into the shape, desired to memorize, at over its Af point (austenite phase transformation completion temperature), and is quenched, and the magnetic disk 12 is installed on it through the spacer ring 13, while the hub member is in a martensite phase state, deformed so as to shrink by impressing further an external stress. Then, the hub member 21 is slightly heated over room temperature, and the outer diameter shape of the hub member 21 is made to restore the memorized original shape of an expanded state that it fills sufficiently the inner diameters of the installed magnetic disk 12 and the spacer ring 13. Thus, the magnetic disk can be easily fixed without using a means like the screw fixing, etc., and making it eccentric.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17759587A JPS6421779A (en) | 1987-07-15 | 1987-07-15 | Fixing structure for magnetic disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17759587A JPS6421779A (en) | 1987-07-15 | 1987-07-15 | Fixing structure for magnetic disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6421779A true JPS6421779A (en) | 1989-01-25 |
Family
ID=16033742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17759587A Pending JPS6421779A (en) | 1987-07-15 | 1987-07-15 | Fixing structure for magnetic disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6421779A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6055123A (en) * | 1997-09-16 | 2000-04-25 | Seagate Technology, Inc. | Radially loaded disc mounting system for a disc drive |
JP2002179004A (en) * | 2000-10-02 | 2002-06-26 | Seiko Corp | Cap supplying device |
-
1987
- 1987-07-15 JP JP17759587A patent/JPS6421779A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6055123A (en) * | 1997-09-16 | 2000-04-25 | Seagate Technology, Inc. | Radially loaded disc mounting system for a disc drive |
US6724567B1 (en) * | 1997-09-16 | 2004-04-20 | Frederick Frank Kazmierczak | Radially loaded disc mounting system for a disc drive |
JP2002179004A (en) * | 2000-10-02 | 2002-06-26 | Seiko Corp | Cap supplying device |
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